Defining/Lengthening the Inner Canthus? (photos)

A defined, "teardrop shaped" negatively-tilted inner canthus is such an attractive trait that many makeup styles attempt to recreate one by lengthening and defining it via eyeliner. It has been said that a version of the Mustarde "jumping man" flap can be used to alter the medial epicanthal region to extend the palpebral fissure toward the nose. Building up the radix could also theoretically lengthen the inner canthus. Is any of this feasible? Could filler help with this issue, and if so, how?